20980104

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 55776000

約数和(自身を除く): 34795896

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 139, 152, 228, 278, 331, 417, 456, 556, 662, 834, 993, 1112, 1324, 1668, 1986, 2641, 2648, 3336, 3972, 5282, 6289, 7923, 7944, 10564, 12578, 15846, 18867, 21128, 25156, 31692, 37734, 46009, 50312, 63384, 75468, 92018, 138027, 150936, 184036, 276054, 368072, 552108, 874171, 1104216, 1748342, 2622513, 3496684, 5245026, 6993368, 10490052, 20980104]

約数ペア:

[(1, 20980104), (2, 10490052), (3, 6993368), (4, 5245026), (6, 3496684), (8, 2622513), (12, 1748342), (19, 1104216), (24, 874171), (38, 552108), (57, 368072), (76, 276054), (114, 184036), (139, 150936), (152, 138027), (228, 92018), (278, 75468), (331, 63384), (417, 50312), (456, 46009), (556, 37734), (662, 31692), (834, 25156), (993, 21128), (1112, 18867), (1324, 15846), (1668, 12578), (1986, 10564), (2641, 7944), (2648, 7923), (3336, 6289), (3972, 5282)]